Bobbin cleaning machine



April 13, 1937. A j- QWLER i 2,077,127

BOBBIN CLEANING MACHINE l Filed April 1,` 1936 Patented Apr. 13, 1937UNITED STATES PATENT OFFICE This invention relates to a machine forremoving weft ends from bobbinswhich have been ejected fromautomaticrlooms before complete exhaustion of theweft thereon.' Theseejected bobbins commonly have from one to three or four yards of` weftremaining on the barrel of each l vide an improved machine for removingthe weft ends from the bobbins without injury tothe bobbins orscratching of the weftlengaging surface thereof.

To the attainment of this object I provide a rotated container, by the'operation of Awhich the bobbins are'caused to coact on each other insuch manner as to entangle and unwind the weft ends therefrom withoutengagement of the bobbins by clamping jaws or other mechanical devices.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawing, in which Fig.1 is an end elevation of my improved bobbin cleaning machine;

Fig. 2 is a sectional plan View, taken along the line 2 2 in Fig. 1;

container;

Fig. 4 is an enlarged detail sectional view of certain parts to bedescribed;

Fig. 5 is a partial view of a bobbin having a weft end thereon, and

Fig. 6 shows a mass of weft ends as produced by the operation of themachine.

Referring to the drawing, I have shown a supporting frame I0 havingcross bars II on which bearings I2 are mounted. A revolvable container Cis provided with end gudgeons I3 and I4 rotatably supported in thebearings I2. A gear I5 is xed to the gudgeon I4 and is engaged by apinion I6 on a countershaft I1 rotatablel in fixed bearings I8 andprovided with tight and loose pulleys I9 and 20, with which pulleys adriving belt 2| is associated. By shifting the belt 2| from the loose tothe tight pulley, the container C may be rotated for any desired period.

The container C preferably comprises octagonal wooden heads 24 to whichwooden side plates 25 are firmly secured in any convenient manner, as bybrackets; 26 and bolts 21 (Fig. 4).

Before the side plates 25 are secured to the Fig. 3 is a sectional endelevation of the rotated lined with a cushioning frictional material.:As indicated in'Fig. 4, the lining may comprise two layers ofsheet-rubber 28 between which :are interposedtwo layers of canvas 29.Preferably the i vends of theselayers are clampedv between the heads 24and side plates 25, as also indicated in Fig. 4. f i z Certain of theside plates are mounted forconvenient removal to aiford access to theinterior `of the container C. vIn Figs. 1 and 3, I have indicated acover section 30 comprising two adjacent side/plates securedtogether,'said section 30being hinged at 3l to an vadjacent side plate25 and being providedxwitha latch32rbywhich it may be'retained infclosedposition." 3.-.; Il

Blocks 40 are secured to the inner faces of the side plates 25 and ofthe cover structure 30 as indicated in Figs. 2 and 3, these blocks beingpreferably formed of wood and being covered with rubber and canvas aspreviously described. Additional blocks 4I may alsoI be provided,preferably having curved outer surfaces and being also covered withrubber and canvas.

The frame I may support a bracket having a slide or track for a bobbintray 46 adapted to receive a load of bobbins transferred to it from amill truck 41. The frame I0 may also support a slide or track 50 for asecond or receiving tray 5I in which the load of bobbins from therotatable container C may be dumped after being cleaned. I have alsoindicated a second truck 52 to which the cleaned bobbins may then betransferred.

Having described my improved bobbin cleaning machine, I will nowdescribe the operation and advantages thereof.

A load of 500 to 600 bobbins is` placed in the tray 46, the coversection 30 is opened and the tray is pushed forward so that the bobbinsto be cleaned may be dumped into the container. The container is thenclosed and is rotated for a desired period, commonly about five or sixminutes.

The bobbins B when placed in the container each have a bunch of weft W(Fig. 5) near the butt of each bobbin. As the bobbins are tumbled aboutwithin the rotating container, they coact on each other and the weftends of the different bobbins quickly become entangled and are unwoundfrom the bobbins. The operation is much facilitated by the action of theblocks 40 and 4I which agitate the bobbins and cause them to moreeffectively coact on each other.

After the machine has been operated for a few minutes, the cover sectionis unfastened and the Vheads-or ends 24, each side plate is preferablyvl It is also found by experience in actual use that Y 98 to 99% of thebobbins will be completely cleaned when removed from the containerafterve or six minutes operation of the machine. The few bobbins notcompletely `cleaned are re turned to the container with the next load ofbobbins to be cleaned.

My improved bobbin-cleaning machine has two very important advantages.In the rst place it handles bobbins with great rapidity, one machinev'easily cleaning upwards of ve thousand bobbins per hour.

A further and even more important advantage lies in the fact that thebobbins are cleaned without engagement by any mechanical device.Consequently the bobbins are not injured and the vyarn-engaging surfacesof the bobbins are not scratched or abraided. This is a particularlyValuable feature when using silk or rayon or any Iother fine or delicateweft.

Having thus described my invention and the advantages thereof, I do notwish to -be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:-

1. A machine for l unwindingA and removing waste yarn from loom bobbinscomprising a revolvable container having a cushioned frictional innersurface and a plurality of inwardly pro- Jecting obstructions on theinner face of said container, a closure for said container, and means torotate said container.

2. A machine for unwinding and removing waste yarn from loom bobbinscomprising a revolvable container having a cushioned frictional innersurface and a plurality of rubber-covered blocks secured to said innersurface, a closure for said container, and means to rotate saidcontainer.

3. A machine for unwinding and removing waste yarn from loom bobbinscomprising a revolvable container having a plurality of flat sides Aeachprovided with a sheet rubber and canvas lining, a plurality of cushionedblocks secured to the inner faces of said at sides, a closure for saidcontainer, and means to rotate said container.

4. A machinevforl unwinding and removing waste yarn from loom bobbinscomprising' va re'- volvable container having a plurality of at sidesand a plurality o-f cushioned blocks secured to the inner faces of saidat sides, a closure for said container, and means lto rotate said con-,-taner.

5. A -machine for unwinding and removing waste yarn from loom bobbinscomprising a re-

